(19)
(11) EP 2 295 913 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.12.2011 Bulletin 2011/49

(43) Date of publication A2:
16.03.2011 Bulletin 2011/11

(21) Application number: 10173013.3

(22) Date of filing: 17.08.2010
(51) International Patent Classification (IPC): 
F28D 7/02(2006.01)
F28D 7/16(2006.01)
 F28F 9/013(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated Extension States:
BA ME RS

(30) Priority: 20.08.2009 JP 2009191138

(71) Applicant: Paloma Co., Ltd.
Mizuho-Ku, Nagoya-Shi, Aichi (JP)

(72) Inventors:
  • Ando, Yoshio
    Nagoya-shi Aichi 467-8585 (JP)
  • Sano, Yasuhiro
    Nagoya-shi Aichi 467-8585 (JP)

(74) Representative: Strobel, Wolfgang et al
Kroher-Strobel Rechts- und Patentanwälte Bavariaring 20
80336 München
80336 München (DE)

   


(54) Spiral pipe heat excahnger with tilted pipe sections


(57) A spiral heat-transfer pipe (2a-2h) for heat exchange provided in a heat exchanger (1) includes: an upstream heat-transfer pipe section (22) disposed on an upstream side of a flow path of an external fluid flowing outside the spiral heat-transfer pipe (2); and a downstream heat-transfer pipe section (24) disposed on a downstream side of the flow path. Each of the heat-transfer pipe sections (22, 24) is disposed so as to extend in a direction crossing the flow path of the external fluid, Each of an axis (12) of the upstream heat-transfer pipe section (22) and an axis (14) of the downstream heat-transfer pipe section (24) is tilted with respect to a horizontal plane. Also, the axis (12) of the upstream heat-transfer pipe section (22) crosses the axis (14) of the downstream heat-transfer pipe section (24).







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